March 20th 2007 10:00AM RCS SOUTHZONE
The County has set a goal to have quarterly Fail Soft testing. The first test will take place on March 20, 2007 in southern San Diego.
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Failsoft meeting will be on February 7th a 0800 Chula Vista PD in preparation for the Failsoft test on March 20th at 1000 hrs.
The purpose of the meeting is to increase the understanding of the RCS’s Failsoft condition and channel assignments, and design a Failsoft Exercise Procedure. During the meeting, Failsoft channel assignments were changed due to agency size and geographic location. The first exercise will take place on March 20th at 1000 hours.
http://www.sdlean.org/files/minutes/200 ... 0Feb07.pdf
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Here some links about 'Failsoft' on motorola trunked system.
North South Simulcast Failsoft Test October 31, 2006
http://www.rcs800mhz.org/web/FailsoftTest06Oct31.pdf
Failsoft - A trunking system failure mode. Under certain conditions, the trunking system may not be able to continue trunking. Each frequency then operates as a repeater with two or more talkgroups sharing the frequency.
Failsoft - From The RadioReference Wiki
http://wiki.radioreference.com/index.php/Failsoft
If the trunking system loses its control channel or has certain other failures, it is no longer able to operate in the trunking mode. So instead of going into a condition that stops all communication, the system enters Failsoft. In this state all transmitters (channels) turn on and operate in a 'conventional' repeater mode. The subscriber radios are able to recognize this state and switch to a predetermined frequency (one of the trunk system frequencies, but not the control channel frequency) depending on their selected talkgroup. In most systems several talkgroups will share a frequency. Some talkgroups may not be assigned a failsoft frequency and these talkgroups will cease to operate during the failsoft period. If a particular failsoft frequency has also failed, the talkgroups assigned to that frequency will also be off the air during failsoft.
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In a Motorola trunked radio system a subscriber unit (SU) in a failsoft mode of operation will period- ically leave the failsoft channel to perform a control channel (CC) lookback search. The CC lookback search consists of reprogramming the SU to the CC frequencies of sites which are learned either through roaming to the site or through adjacent site informa- tion broadcasts. If CC operation is found on any of the CCs, failsoft operation will be exited and trunk- ing operation will resume. Failsoft CC lookback searches will be performed after a SU programma- ble time period (defaulted to 2 minutes; programma- ble up to 4 minutes) in which no voice transmission has been performed by the user.
